What is the difference between similar and congruent

Point r divides in the ratio 1 : 3. if the x-coordinate of r is -1 and the x-coordinate of p is -3, what is the x-coordinate of q? a. b. 3 c. 5 d. 6 e. -9

Solve 4 ln x=2ln25 a) x=5 b) x=25 c) x=625

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